.iframe {
    .container {
        position: relative;
        iframe {
            width: 100%;
            height: 500px;
            position: absolute;
            top: 0;
            left: 0;
            z-index: 2;
        }
        .loading {
            position: absolute;
            top: 10px;
            left: 0;
            z-index: -1;
        }
    }
}
